drm/i915: Set the VIC in AVI infoframe for SDVO

We do this for HDMI already, so I don't know why we wouldn't do
it for SDVO as well.

This is completely untested due to lack of hardware.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_sdvo.c

@@ -965,6 +965,8 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
 			avi_if.body.avi.ITC_EC_Q_SC |= DIP_AVI_RGB_QUANT_RANGE_FULL;
 	}
 
+	avi_if.body.avi.VIC = drm_match_cea_mode(adjusted_mode);
+
 	intel_dip_infoframe_csum(&avi_if);
 
 	/* sdvo spec says that the ecc is handled by the hw, and it looks like